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2022_SEELAZ: Silver eel migration behaviour in the Azores
Citation
Afonso P., Verhelst P., Priester R., Reubens J. 2022. Silver eel migration behaviour in the Azores. https://marineinfo.org/id/dataset/8163

Availability: This work is licensed under http://vocab.nerc.ac.uk/collection/L08/current/MO meaning it is under moratorium until 2026-11-30

Description
The Azores is the most west located distribution area for European eel (Anguilla anguilla) and closest to the spawning grounds presumably in the Sargasso Sea. Being almost in the middle of the Atlantic Ocean and consisting of an archipelago of volcanic islands with small streams running dry during periods of low to no precipitation, it is a unique system across the European-wide habitat range for European eels. In fact, it is the only native teleost inhabiting the freshwater systems on the Azores. As the species is considered a symbol for global change, knowledge on its ecology can be used to assess human impact on aquatic systems. In this project, we track the silver eels in a stream during their migration to the sea. more

This can lead to insights on timing, migration speed and potential hazards (e.g. waterfalls) they need to take. Obviously, the results will contribute to a cost-effective management of the streams on the Azores and the conservation of the critically endangered European eel.

Scope
Themes:
Biology, Biology > Acoustics, Biology > Ecology - biodiversity, Physical > Underwater acoustics
Keywords:
Fresh water, Acoustic data, Acoustic detection, Acoustic devices, Acoustic Telemetry, Acoustic tracking, Animal migrations, Barriers, Barriers (biological), Fish tracking, Migration barriers, Spawning, Spawning grounds, Spawning migrations, Streams, Waterfalls, Wild spawning, ANE, Azores, Faial I., Anguilla anguilla (Linnaeus, 1758), Anguillidae Rafinesque, 1810

Geographical coverage
ANE, Azores, Faial I. [Marine Regions]

Temporal coverage
From 1 November 2022 on [In Progress]

Taxonomic coverage
Anguilla anguilla (Linnaeus, 1758) [WoRMS]
Anguillidae Rafinesque, 1810 [WoRMS]

Parameter
Acoustic detections Methodology
Acoustic detections: Acoustic telemetry

Contributors
University of the Azores (UAC), moreprincipal investigatordata creator
Vlaamse overheid; Beleidsdomein Omgeving; Instituut voor Natuur- en Bosonderzoek (INBO), moredata creator
Vlaams Instituut voor de Zee (VLIZ), moredata creator

Related datasets
Parent dataset:
European Tracking Network (ETN) data, more

Project
Mission Atlantic, more

Dataset status: In Progress
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2022-12-06
Information last updated: 2024-03-29
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy